<!-- V2 -->
 <template>
   <div class="person">
    <h2>姓名：{{ name }}</h2>
    <h2>年龄{{ age }}</h2>
    <button @click="changeName">修改名字</button>
    <button @click="changeAge">修改年龄</button>
    <button @click="showTel">查看联系方式</button>
   </div>
 </template>
 <script lang="ts">
export default {
    name: 'Person',
    data() {
      return {
        name: 'John',
        age: 30,
        tel: '1234567890'

      }
    },
    methods: {
      changeName() {
        this.name = 'Mike'
      },
      changeAge() {
        this.age += 1
      },
      showTel() {
        alert(this.tel)
      },
    }
}
</script>

 <style scoped>
 .person {
  background-color: skyblue;
  box-shadow: 0 0 10px;
  border-radius: 10px;
  padding: 20px
}
button {
  margin: 0 5px;
}
</style>